Chemia Naissensis最新文献_第3页

Polyphenolic profile of selected varieties of Serbian berries 塞尔维亚浆果品种的多酚谱

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn5.1.24m

J. Mrmošanin, Milena Nikolić, M. Mitić, S. Tošić, A. Pavlović

{"title":"Polyphenolic profile of selected varieties of Serbian berries","authors":"J. Mrmošanin, Milena Nikolić, M. Mitić, S. Tošić, A. Pavlović","doi":"10.46793/chemn5.1.24m","DOIUrl":"https://doi.org/10.46793/chemn5.1.24m","url":null,"abstract":"Selected varieties of strawberries, blackberries, and blueberries grown in Serbia have been analyzed, and their polyphenolic profile was determined by HPLC analysis. The occurrence of phenolic acids, flavonols, and anthocyanins has been examined. Caffeic, p-coumaric, ferulic, and ellagic acid were identified and quantified. Six flavonols have been identified in berry samples: quercetin, quercetin-glucoside, quercetin-galactoside, kaempferol, kaempferol-glucoside, and rutin. The following anthocyanins were found in strawberries: pelargonidin-glucoside, pelargonidin-rutinoside, cyanidin-glucoside, and cyanidin-malonylglucoside. Cyanidin-glucoside, cyanidin-rutinoside, and cyanidin-malonylglucoside were found in blackberry samples. The following anthocyanins were found in blueberries: delphinidin-galactoside, delphinidin-glucoside, delphinidin-arabinoside, cyanidin-galactoside, cyanidin-glucoside, cyanidin-arabinoside, petunidin-arabinoside, petunidin-galactoside, peonidin-galactoside, and malvidin-galactoside. Statistical multivariate method – principal component analysis (PCA) was used to classify phenolic acids, flavonols, and anthocyanins according to their contents in berry samples. Cluster analysis (CA) was used to classify samples based on the individual polyphenolics content.","PeriodicalId":351621,"journal":{"name":"Chemia Naissensis","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116838583","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

„Sambucus nigra“ and „Sambucus racemosa“ fruit: a schematic review on chemical characterization “黑参”和“总状参”果实的化学性质综述

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn2.2.001m

Vojkan Miljković

{"title":"„Sambucus nigra“ and „Sambucus racemosa“ fruit: a schematic review on chemical characterization","authors":"Vojkan Miljković","doi":"10.46793/chemn2.2.001m","DOIUrl":"https://doi.org/10.46793/chemn2.2.001m","url":null,"abstract":"Elderberry is a plant which parts are used for healing purposes. It is rich in polyphenolic compounds (anthocyanins, flavonols, phenolic acids, proanthocyanidins). Black elderberry is the most characterized of all elderberry types. In this paper, the emphasis is on published results about the fruit of black elderberry (Sambucus nigra) and red elderberry (Sambucus racemosa), as well as different cultivars within these species. The first step in chemical analysis of a plant material is the extraction. It is important to choose the appropriate extraction technique and solvent(s) for the extraction. Spectrophotometric methods enable the determination of total phenol content, total monomeric anthocyanin content, antioxidant activity (ABTS ˙ +, DPPH˙, TEAC, β-carotene / linoleic acid assays). High performance liquid chromatography technique combined with appropriate detectors (for carbohydrates and organic acids: HPLC-PDA; for individual phenolic compounds: HPLC-DAD-MS, HPLC-DAD-ESI-MS-MS; for individual anthocyanins: HPLC-DAD–, HPLC-MS-MS, HPLC-UV-MS-MS, HPLC-DAD-ESI-MS, HPLC-DAD-ESI-MS-MS; for proanthocyanins: HPLC-ESI-MS-MS) provides the results about chemical composition, which were determined. Differences in chemical composition are evident between black and red elderberry, and less within different cultivars of the same species. Values for the total anthocyanin content obtained by using the HPLC method are two or more times higher than those obtained spectrophotometrically. The same can be said for the results for phenolic compounds. Elderberry fruit should be more commercialized since the chemical composition makes it a source of a cosmetically active substances.","PeriodicalId":351621,"journal":{"name":"Chemia Naissensis","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129122988","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tomato-the chemistry of “golden apple” 番茄——“金苹果”的化学成分

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn2.2.109b

Danica S. Blagojević, J. Nikolić

引用次数: 0

Analytical Problem-Solving Procedures for Undergraduates by 1 H NMR 用氢核磁共振分析解决大学生问题的程序

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn2.2.066z

A. Živković, H. Stark

引用次数: 0

Intra- and intermolecular H-bonding of benzotriazole UV stabilizers evidenced using 1D nuclear Overhauser effect experiments 用一维核Overhauser效应实验证明了苯并三唑类紫外线稳定剂分子内和分子间的氢键

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn3.2.028h

J. Hobley, V. Malatesta

引用次数: 0

History of the Department of Chemistry, the University of Niš, Republic of Serbia 塞尔维亚共和国尼日什大学化学系历史

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn1.1.001k

D. Kostić

{"title":"History of the Department of Chemistry, the University of Niš, Republic of Serbia","authors":"D. Kostić","doi":"10.46793/chemn1.1.001k","DOIUrl":"https://doi.org/10.46793/chemn1.1.001k","url":null,"abstract":"Department of Chemistry was founded in 1971. In its long history, it became famous in Serbia and abroad because of the success and skills of its undergraduates, graduate students, and PhDstudents. At the Department of Chemistry, since the founding, in addition to teaching, fundamental and applied researches were carried out in various fields of chemistry. Scientific activity was accomplished through many projects funded by the Republic of Serbia and international projects and within the framework of the Institute of Chemistry. Up to the end of 2017, a more than 1000 students graduated at the Department of Chemistry. Starting from the school year 2005-2006, previous Diploma of high education has been equalized with Master's degree. One hundred and ten master theses and 105 doctoral dissertations were defended (41 according to the new accredited program). Under the new Bologna program, 160 students received bachelor’s degrees and 96 master’s degrees. Graduated chemistry professors have made a great contribution to the development of education in Serbia also contributing to the development of the chemical industry in Serbia, and it is worth mentioning that many of them are very successful in working abroad. Masters and PhDs of Chemistry are employed at many faculties and colleges in Serbia and abroad. Many of them are authors of a large number of scientific papers published in renowned world scientific journals.","PeriodicalId":351621,"journal":{"name":"Chemia Naissensis","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130306031","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

GC-MS profile of homemade fruit brandies 自制水果白兰地的GC-MS谱图

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn5.1.88s

Jelena Stamenković, Gordana Stojanović

引用次数: 0

Sulfonated „Lagenaria vulgaris“ shell as a potent biosorbent for copper at low pHs 磺化“Lagenaria vulgaris”壳作为低ph值下铜的有效生物吸附剂

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn5.1.47s

M. Stanković, Vladimir D. Dimitrijević, Dragan M. Đorđević, Aleksandar Bojić

引用次数: 0

Kinetic and Thermodynamic Characteristics of Thermal Degradation of Anthocyanins from Strawberry and Blueberry Commercial Juices 草莓和蓝莓商业果汁中花青素热降解的动力学和热力学特性

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn3.2.046m

M. Mitić

引用次数: 0

Chair of Analytical and Physical Chemistry 分析和物理化学主席

Chemia Naissensis Pub Date : 1900-01-01 DOI: 10.46793/chemn1.1.018m

Snežana Mitić, S. Tošić, A. Pavlović, M. Mitić

{"title":"Chair of Analytical and Physical Chemistry","authors":"Snežana Mitić, S. Tošić, A. Pavlović, M. Mitić","doi":"10.46793/chemn1.1.018m","DOIUrl":"https://doi.org/10.46793/chemn1.1.018m","url":null,"abstract":"The Chair for Analytical and Physical Chemistry currently consists of ten professors and two associates. A number of researchers and other associates also contribute to the work carried out within the Chair. Throughout every level of the studies (Undergraduate Academic Studies, Master Academic Studies, and Doctoral Academic Studies), the students attend a great number of courses within these scientific fields. The members of the Chair are the authors of 14 university coursebooks, workbooks, as well as practicums. The professors, associates and researchers of the Chair deal with the following fields of scientific research: the GC-MS analysis of PAHs with the optimization of the method of samples preparation, the development and validation of the ICP-OAES methods, the development and validation of kinetic spectrophotometric methods, the HPLC determination of total polyphenols, flavonoids and anthocyanins with the examination of the kinetics of their degradation, the spectrophotometric and the cyclic voltammetry determination of antioxidant activity. A large number of papers has been published in international and national journals. The research laboratories are equipped with ICP-AES, HPLC, spectrophotometers, automatic titrator, analytical balances, high purity water system, vacuum evaporator, pH-meters, conductometers, and other minor laboratory equipment. The researchers of the Chair have participated in many national scientific-research projects, as well as international projects such as Erasmus, Tempus, FP7, The Researchers’ Night, and they have also attended the postdoctoral specializations and study visits abroad, which contribute to the good cooperation between the Chair and other universities in the world.","PeriodicalId":351621,"journal":{"name":"Chemia Naissensis","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114802201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0